Home / 21,180.23-29,232.22-11,751.83

Finding the Fourth Proportional to 21,180.23, 29,232.22 and 11,751.83

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Solution

The fourth proportional to 21,180.23, 29,232.22 and 11,751.83 is: 16,219.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,180.23 : 29,232.22 = 11,751.83 : x
  2. Step 2: Convert to fraction form
    21,180.23/29,232.22 = 11,751.83/x
  3. Step 3: Cross multiply
    21,180.23x = 29,232.22 × 11,751.83
  4. Step 4: Simplify right side
    21,180.23x = 343,531,875.04
  5. Step 5: Solve for x
    x = 343,531,875.04/21,180.23
  6. Step 6: Final answer
    x = 16,219.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.